Carton-sealing machine.



G. READ.

CARTON SEALING MAGHINE.

APPLIOATION FILED MAY 16, 1911. 1 1,032,774 Patented July 16, 1912.

I! m W g 1N VE N T 0R @ZJLeM M A llorneys WITNESSES IQE.

CHARLES READ, OF CATONSVILLE, MARYLAND.

CARTON-SEALING MACHINE.

To all whom it may concern:

Beit known that I, CHARLES READ, a citizen of the United States, residing at Cat onsville, in the county of Baltimore and State of Maryland, have invented certain new and useful Improvements in Carton-Sealing Machines, of which the following is a specifica'tio-n.

The purpose of this invention is to provide a simple and effective device for sealing the ends of paper cartons, the construction and operation of which will be clear from the following specification, taken in connection with the accompanying drawings in which,

Figure 1 is a side elevation of the machine; and, Fig. 2 is a vertical section taken centrally through the form carrier.

Referring to the drawing A indicates the frame of the machine having a pair of uprights 1 between which is mounted a rotary form-carrier B comprising a shaft 2, journaled in said uprights, a hub 3 secured to the shaft and a series of spokes 4t having at their ends forms 5 adapted to fit into the cartons. These forms are all alike, and equidistant from the axis of the carrier. Extend-ing around the rear side of the memher B, and carried by the frame A, is a support G consisting of a pair of plates 6 which extend about half way around the member B, at the sides of the forms 5, and the plates composing this support are provided with bearings 7 in which are arranged rollers 8. As shown in the drawing, the bearings 7 are elliptical so that the rollers may have a slight radial movement with respect to the member B. The rollers are arranged close together and the series of rollers extends substantially concentric with the axis of the member B around the rear side of said memher for a distance equal to nearly one half of its circumference. These rollers are adapted to bear against the ends of the cartons on the forms 5 as the latter pass under the rollers. A band 9, preferably of spring steel, extends around the outer sides of the entire series of rollers and presses the rollers firmly against the cartons.

In practice, the operator places a carton upon the uppermost form 5 at the front of the machine and cements and folds the end flaps and then moves the carrier in the di rection of the arrow until the carton is carried under the uppermost rollers 8 An Specification of Letters Patent.

Application filed May 16, 1911.

Patented July 16, 1912.

Serial No. 627,626.

other carton is then placed upon the next form 5 and its ends are cemented and folded and the carrier is given a partial rotation, as before, until the end of this carton is brought under the rollers at the top ofthe machine. In the drawings the rollers are arranged to bear upon the cartons on six forms at one time and therefore it will be evident that each carton end will be pressed upon by the rollers during the time that the operator is feeding six successive cartons to the machine. During this time the paste will set so that after a carton has passed from the lowermost roller 8 the carton end will hold its shape. After passing from the rollers each carton drops from its form through an opening 10 in the frame and into a suitable receptacle.

Any desired number of spokes and forms may be used. As the rollers may move slightly on radial lines it will be evident that cartons with ends of varying thickness may pass by without becoming jammed against the rollers, as the latter and the spring band will yield outwardly opposite the spokes if the carton ends are thick and may at the same time yield inwardly between adjacent spokes, the outward pressure at the spokes tending to straighten the hand between the spokes. The forms are removably secured to the spokes and forms of different sizes may be used, as desired.

What I claim is 1. In a carton-sealing machine a rotatably mounted carrier having a plurality of circumferentially arranged forms adapted to fit into the cartons, and means for press ing the ends of the cartons against said forms comprising a support, a series of rollers mounted in suitable hearings in said sup port, substantially concentric with the axis of said carrier, said bearings permitting slight radial movement of the rollers, and an arcuate band adapted to yieldingly engage each of said rollers, said band having its ends secured to the machine.

2. In a carton-sealing machine a rotatably mounted carrier having a series of spokes and forms on the ends of said spokes adapted to fit into the cartons, a support extending adjacent the ends of a plurality of said forms at the rear side of the machine, an arcuate series of rollers journaled in said support so as to permit of slight radial movement of the rollers, and an arouthan the distance between adjacent forms, each roller being movable radially with respect to the carrier, and an arcuate" band 1 adapted to yieldingly engage each of said rollers, said band having its ends secured to the machine.

In testimony whereof I aflix my signature, in presence of two witnesses.

CHARLES READ. Witnesses:

FRED B. SMITH, C. ROLLINS ROGERS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

